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Finding the Fourth Proportional to 767,745, 1,059,440.04 and 423,585

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Solution

The fourth proportional to 767,745, 1,059,440.04 and 423,585 is: 584,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,745 : 1,059,440.04 = 423,585 : x
  2. Step 2: Convert to fraction form
    767,745/1,059,440.04 = 423,585/x
  3. Step 3: Cross multiply
    767,745x = 1,059,440.04 × 423,585
  4. Step 4: Simplify right side
    767,745x = 448,762,909,343.40
  5. Step 5: Solve for x
    x = 448,762,909,343.40/767,745
  6. Step 6: Final answer
    x = 584,520.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.